Their product.
That depends on the numerical value of W.
That depends on the numerical value of w.
That depends on the numerical value of Y.
If they have no prime factors in common, the LCM of w and y is their product.
Any multiple of 9w
If the GCF of w and Y is 1, multiply them together.
The answer depends on the values of W, Y and w. Without further information, all that can be said is that the greatest common factor is 1.
That depends on their numerical values.
They are all multiples.
That would depend on their numerical values.
It is not clear from the question whetherx is an even number, which is less than W orW minus an even number.The distinction obviously affects the possible answers.
Those are known as "common multiples". The smallest POSITIVE of these common multiples is called the "least common multiple".